Genetic variation of an intestinal leucine arylaminopeptidase (Lap-1) in the mouse and its location on chromosome 9.
Animal, Chromosome-Mapping, Female, Genes-Structural, Genotype, Intestine-Small: en, Kidney: en, Leucine-Aminopeptidase: an, Leucyl-beta-Naphthylamidase: an, Linkage-(Genetics), Male, Mice, Mice-Inbred-Strains, Recombination-Genetic, SUPPORT-U-S-GOVT-NON-P-H-S, SUPPORT-U-S-GOVT-P-H-S
Biochem-Genet. 1975 Oct; 13(9-10):511-8.
Electrophoretic variation for an intestinal enzyme that cleaves L-leucyl-beta-naphthylamide has been discovered among inbred mouse strains. Several strains including related strains C57BL/6J, C57BL/10J, C57BR/cdJ, C57L/J, and C58/J demonstrate an electrophoretic band of this enzyme that is absent in other strains and stocks thus far observed. The enzyme is tentatively being called leucine arylaminopeptidase (LAP) and the variant genetic locus Lap-1. The presence of the band is determined by an allele designated Lap-1a. Homozygotes for the alternate allele, Lap-1b, are without the band and heterozygotes are, under our electrophoretic conditions, indistinguishable from Lap-1a homozygotes. Data from recombinant inbred lines and a B6D2F1 X DBA/2J backcross established linkage of Lap-1 to dilute (d) and supernatant malic enzyme (Mod-1) on chromosome 9 in the following order: Lap-1-d-Mod-1. The Lap-1 to d map distance was estimated to be 21.3 +/- 4.6 cM from backcross data and 8.1 +/- 4.8 cM from recombinant inbred lines.
Womack, J E.; Lynes, M A.; and Taylor, B A., " Genetic variation of an intestinal leucine arylaminopeptidase (Lap-1) in the mouse and its location on chromosome 9." (1975). Faculty Research 1970 - 1979. 523.
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